Title :
Indirect negative feedback bipolar LNA
Author :
Adiseno ; Ismail, M. ; Olsson, H.K.
Author_Institution :
R. Inst. of Technol., Stockholm, Sweden
Abstract :
In this paper, an indirect negative feedback (INF) technique is adopted in the design of a low-noise amplifier (LNA) suitable for low-voltage wireless communication applications. It is shown in this paper that INF is suitable to achieve an acceptable performance of LNA´s in low-voltage operation. The output stages of the LNA can be placed near the ground rail and directly driving a Gilbert mixer. Simulation in SpectreRF show that this wideband LNA has a NF of 3.7 dB at 1.4 GHz, power gain of 25 dB, OIP3 of 20 dBm, -3 dB bandwidth of 2.3 GHz (low-pass characteristic) and an accurate input impedance with a tolerance less than 12% and is matched to a 200 Ω balanced source impedance. The whole circuit is powered by 2.7 V single supply with a total DC current of 24 mA
Keywords :
UHF amplifiers; UHF integrated circuits; bipolar MMIC; bipolar analogue integrated circuits; feedback amplifiers; integrated circuit noise; low-power electronics; wideband amplifiers; 1.4 GHz; 2.3 GHz; 2.7 V; 24 mA; 3.7 dB; LV wireless communication applications; RFIC; bipolar LNA; indirect negative feedback; low-noise amplifier; low-voltage operation; wideband LNA; Bandwidth; Circuits; Gain; Impedance; Low-noise amplifiers; Negative feedback; Noise measurement; Rails; Wideband; Wireless communication;
Conference_Titel :
Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on
Conference_Location :
Pafos
Print_ISBN :
0-7803-5682-9
DOI :
10.1109/ICECS.1999.812334
